The SRAM DUB bottom bracket series has a simple job— to connect crankarms and protect the smooth, long-lasting application of power to the drivetrain. SRAM engineered the oversized DUB spindle to work across every bottom bracket standard, simplifying crankarm compatibility.

• Gutter Seal Technology™ drastically improves sealing against the elements
• Sealed cartridge bearings
• One oversized spindle to work across every bottom bracket standard
• Significantly lighter than GXP system
• BB30 73mm
• Spindle Interface Type: SRAM DUB
• BB Shell Width (mm): 68 , 73
• Bottom Bracket Shell I.D.: 42
• BB/Frame Interface: BB30
• Defined Color: Black